70 lines
1.7 KiB
Markdown
70 lines
1.7 KiB
Markdown
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---
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id: 587d7b88367417b2b2512b45
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title: Write Higher Order Arrow Functions
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challengeType: 1
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videoUrl: ''
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localeTitle: ''
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---
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## Description
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undefined
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## Instructions
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undefined
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: ''
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testString: 'getUserInput => assert(getUserInput("index").match(/const\s+squaredIntegers/g), "<code>squaredIntegers</code> should be a constant variable (by using <code>const</code>).");'
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- text: ''
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testString: 'assert(Array.isArray(squaredIntegers), "<code>squaredIntegers</code> should be an <code>array</code>");'
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- text: ''
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testString: 'assert.deepStrictEqual(squaredIntegers, [16, 1764, 36], "<code>squaredIntegers</code> should be <code>[16, 1764, 36]</code>");'
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- text: ''
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testString: 'getUserInput => assert(!getUserInput("index").match(/function/g), "<code>function</code> keyword was not used.");'
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- text: ''
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testString: 'getUserInput => assert(!getUserInput("index").match(/(for)|(while)/g), "loop should not be used");'
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- text: ''
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testString: 'getUserInput => assert(getUserInput("index").match(/map|filter|reduce/g), "<code>map</code>, <code>filter</code>, or <code>reduce</code> should be used");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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const realNumberArray = [4, 5.6, -9.8, 3.14, 42, 6, 8.34, -2];
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const squareList = (arr) => {
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"use strict";
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// change code below this line
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const squaredIntegers = arr;
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// change code above this line
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return squaredIntegers;
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};
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// test your code
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const squaredIntegers = squareList(realNumberArray);
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console.log(squaredIntegers);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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